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(No Model.) 3 Sheets-Sheet 1.

G. O. DOUGHERTY. FREIGHT 0R GRAIN GAR DOOR.

No. 450,559. Patented Apr. 14, 1891.

m W I Zed Ln'no Asmmsmu n (Nd Model.) a Sheets-Sheet 2.-

G. C. DOUGHERTY. FREIGHT 0R GRAIN GAR DOOR.

' N0. 450,559. Patented Apr. 14, 1891.

LQEIJIHE EIHIIEJEE a n za'l (No Model.) 3 Sheets-Sheet 3.

G. O. DOUGHERTY. FREIGHT OR GRAIN OAR DOOR.

No. 450,559. Patented Apr. 14,1891.

NITE. TATES ATENT FFICE.

GEORGE O. DOUGIIERTY, OF QUINCY, ILLINOIS, ASSIGNOR TO JOHN T. SMITH, SAMUEL I'I. HITSITT, LOUIS II. BERGER, AND LOUIS G. OST, ALL

SAME PLACE.

FREIGHT OR GRAIN CAR DOOR.

SPECIFICATION forming part of Letters Patent No. 450,559, dated April 14, 1891.

Application filed October 8,1890. Serial No. 366,918. No modeL) To all whom it may concern.-

Be it known that I, GEORGE O. DOUGHERTY, of Quincy, in the county of Adams and State of Illinois, have invented certain new and useful Improvements in Freight or Grain Oar Doors; and I do hereby declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming a part of this specification, and to the letters of reference marked thereon.

This invention relates to improvements in doors, particularly such as are employed on freight or grain cars, to facilitate the loading, unloading, and handling of the grain, the objects being to provide a door which will shut flush with the side of the car, so as to completely close the door-opening and permit the top or bottom section to be independently pushed along the side or the lower half to open at the bottom for the discharge of the grain, and, further, to provide fastening devices for the doors of great strength and simplicityof design, requiring but little manipulation to open or secure the same.

The invention consists in certain novel details of construction and combinations and arrangements of parts to be hereinafter described, and pointed out particularly in the claims at the end of this specification.

Figure 1 is a side elevation of a door c011- structed in accordance with my invention. Fig. 2 is a similar view with the upper section of the door open and the lower section swung out. Fig. 8 is a sectional view above the lower section of I the door, looking down. Fig. 4 is a vertical section with the lower section of the door in the position shown in Fig. 2. Fig. 5 is a skeleton view of the lock for the lower section. Fig. 6 is a top plan view showing the top rail and hangers of the upper section in detail.

Similar letters of reference in the several figures indicate the same parts.

The door in the present instance is made in two sections A and B, one above the other, to facilitate the handling of grain, such sections being mounted to slide on tracks or ways a b b, respectively, the track a being located at or near the top of the car and is inclined inward slightly, as shown in Fig. 6, for a purpose to presently appear, the track I) at the center to form the top support for the lower section B, and the track I) at the bottom to form the bottom support therefor. The hangers O O for the bottom of the lower section embrace the lower rail and are connected to the said section by the shafts D D, mounted in bearings d d on the door-section and having their lower ends cranked and held in bearing in the top of the hangers.

At the upper ends of the shafts D, which, it will be seen, are located at each side of the center of the door, are locking-bolts E, adapt ed to be projected in opposite directions to engage the strike-plate e e on the sides of the car as the shafts are turned to force the door into the position shown in Fig. 1. The bolts E E are preferably mounted in bearings and have on their outer surfaces suitable gearteeth a, with which the pinions cl on the shafts D co-operate. When unlocked, the upper part of the lower section-B is prevented from swinging out farther than is necessary to move horizontally by means of the link F, which is pivoted thereto at the upper righthand corner, its opposite end being pivotally connected to the hanger F, embracing the central rail 1). lVith this construction it will be seen that by rotating the shafts D D by -means of the arms G and handles g the locklower section and slide the same along the ways to give a full door-opening.

For the purpose'of discharging grain from a car down into a conveyer below the same hope of recovery, particularly if the car he moving. This difficulty I. propose to overcome by providing a lock for the lower section, 1

which can only be released from the inside of the door, making it necessary to open the upper section before the lowersection can beopened. This lock consists of a turn-bolt II, mounted in bearings in the lower central portion of the door and adapted to pass through slots in both the arms G, which turn-bolt is operated by a crank-arm h and upwardly-extending rod 71, on the inside of the door. The upper end of therod h is provided'with a handle at a point: near the top of: the door and immediately below. the same with locking-notches hiadapted to engage-a lockingpin hi and to be released therefromby a lateral= movement, .as willbe readily understood. The-uppen-sectionA of the door is also providedwithitwohangers II, the one I corresponding-to-the hangers C for the lowersection, and iSGOHDGClJGClitO the upper right-hand portion'of. the door by the shaft-K, having the crank 70.- thereof held in a bearing in the hanger.v This shaft K is also rotated to throw thedoor out or intoits seat by an arm is, having a slot thereinfor engagement with the hasp'and-pin-k to hold the same with the door in-.closedposition. The hanger I-is preferably intheform of a simple loop, which embraces the rail a and is adapted to travel along the rail, which is inclined in toward the sitleofthecar at the left, and thereby, causes the door to strike the opposite jamlo when pushed home, the loop being large enough to ermitthedoor to be firmly seated whenthe crank-shaft, is turned. the door are loeked together by pins M M, passingthrough registering clips on the upper'andzlower edges of the sections, respectively, and-they are both locked iniclosed position by the plate N, which is permanently stapled toone section and has two slots 01 at.

which ass over sta les n n on the u er P pp section and. side ofthe car, respectively, suitablepinsn n being. provided to prevent the release ofthe locking-plate, the latter pin,

having a hole through its point for the passage of'a sealing-wire.

The door-jamb is provided with an internal shoulder, against which the door-sections. seat to form a tight seal, and the top edge of the lower seetionis inclined outward for the donblepurpose of shedding any water that mightwork in between the same and to form a tight seal-when the upper section is forced home,

It will, be noted that the outward movement of the left-hand side of the uppersee tion-iis prevented when the crank, is turned to closed position and looked, as such outward movement would necessarilybe accom- The two sections of panied by a corresponding inward movement of the right-hand side with the shaft K as a center, and such movement would be resisted by the shoulder in the jamb, making it necessary to employ other fastening devices only at the bottom of the section.

The swinging of the doorsections when open is prevented by the stop-plates O, the ends 0 of which pass over the edge of the door when fully opened.

With a door such as herein described it will be seen that the lower section as well as the upper section may be moved horizontally along the sideof the car without danger of becoming detached at either end, and that there is practically no dependence of the sections upon each other, as has been the case with doors of this class heretofore constructed.v

Having thus described my invention, what I claim,as new is l. Ina sliding door having top and,- bottom sections, the combination, with'the upper section. and hanger-rail'and hanger therefonof the lower section, the hanger-rails at top and bottom of the same, and-a loose connection 1 between the top of. said section and itshanger rail, whereby. said section may be'moved-into the door-opening, substantially as-vdescribed.

:3. In a sliding door having top and bottom sections, the combination, with the upper section, hanger-rail, and hanger therefor,,of: the lower section, thehanger-rail at top and-bottom of the same, the hangers uniting the bottom of said section and the-bottom hanger-rail, thehanger on the upper rail, and the link uniting said hanger and the topof the lowervsection, substantially. as described;

In a sliding door, the combination, with the upper section, hanger-rail therefor, and

the independent lower section, its hangerrails, and a-loose connectionbetween the top of said section andits upper rail, of theindependent crank-shafts on said upper and lower sections, having the crank ends connected, respectively, with the top andbottom hangerrails, substantially as described;

t. The combination, with a car-door having vertical crank-shafts thereon, the hanger-rail, and hangers with which the cranks on the shaf-ts-co-operate,.of the locking-bolts engaging strike-plates at the sides of; the doornand having gear-teeth thereon and the pinionon the shafts engaging the locking-boltsto throw .the same out as the; shafts are turned to locked position, substantially as described.

5. In a freight-ear door, the combination, with the'upper door-section and the locking device therefor, of the independent lowersection and the locking device therefor, having its controlling-handle on the inside of the door, whereby said lower sectionican be unlocked only after the'upper sectionis opened, substantially as described.

43. The combination, with a door. having a crank-shaft thereon, hanger-rail'and. hangers with which the crank-shafts co-operate, and the operating-arms on said crank-shafts, of

ICC

10 the bottom section of the door, co-operating with the hangers on the bottom rail, a single crank-shaft on the top section of the door, oooperating with one of the hangers on the top rail, and a direct connection between the other hanger and top of -the door, substan- I5 tially as described.

GEORGE C. DOUGHERTY. Witnesses:

ALEX. S. STEWART, ALVAN MAoAULEY. 

